500
Mark: (you, do)
me a favor, Sam?
Sam: Sure, what do you want me to do?
Mark: I (changen the broken light bulb in the lamp above the dining room table. I need someone to hold the ladder for me while I am up there.
Sam: No problem, I (hold)
it for you.
Mark: Will you do me a favor, Sam?
Sam: Sure, what do you want me to do?
Mark: I am going to change the broken light bulb in the lamp above the dining room table. I need someone to hold the ladder for me while I am up there.
Sam: No problem, I will hold it for you.